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More Info, If You Do Not Find A Modulator, You Could Have a Different Trans. If You Have A Square Pan With 16 Bolts Then You Have A 4L60 or TH700( no modulator on these) If the pan is oval and 17 Bolts Has 4L80 ( no modulator on these) Hope This Helps You Should Have A TH400 Trans & It Does Have A Modulator.

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Q: Does a 1988 Chevy 1500 have a transmission vacuum modulator?
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Related questions

Where is the vacuum modulator on a 1989 Chevy k-1500 4wd 5.7?

The vacuum modulator on a 1989 Chevy K-1500 4wd 5.7 is underneath the transmission. It can be reached from under the car.


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That year model did not have a modulator valve on the transmission.


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Where is the transmission modular valve located on my 1994 Chevy 1500 pickup truck


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NO it does not. The transmission is controlled by the computer.


Where does the vacuum line from the modulator valve go to on a 1994 1500 Chevy pickup?

The factory transmission that belongs in that 94 model did not use are have a modulator valve. But to answer your question the line goes to any intake vacuum source. That year truck should have the 4L60E transmission in it.


Where is the modulator valve on a 1998 1500 Chevy pickup?

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